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Surface free energy of a soil clay fraction in relation to aggregate stability

Published online by Cambridge University Press:  09 July 2018

B. Jańczuk ,
G. Józefaciuk ,
M. Hajnos ,
T. Bialopiotrowicz  and
A. Kliszcz
B. Jańczuk
Affiliation:
Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lubin, Poland
G. Józefaciuk
Affiliation:
Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
M. Hajnos
Affiliation:
Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
T. Bialopiotrowicz
Affiliation:
Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lubin, Poland
A. Kliszcz
Affiliation:
Department of Physical Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lubin, Poland
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Extract

When studying surface free energies of clays in relation to clay composition, we calculated that in some instances the aggregate stability should be higher for Na- then for Ca-forms. This raised the question as to whether the results obtained with the surface free energy approach are reliable for estimation of soil aggregate stability. The aim of the present work was to measure the surface free energy components and attractive forces for a clay calculated from measurements of the contact angle of glycerol, diiodomethane and cis-decalin and to compare them with results of penetrometrical measurements.

Type
Notes
Information
Clay Minerals , Volume 28 , Issue 1 , March 1993 , pp. 145 - 148
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1993

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References

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Jańczuk, B., Bialopiotrowicz, T., Zdziennicka, A., Hajnos, M. & Józefac1uk, G. (1992) The influence of soil clay constituents on surface free energy of clay fractions. J. Soil Sci. 43, 27–35.Google Scholar
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